Results 21 to 30 of about 1,353,139 (279)

In situ measurement of the dynamic structure factor in ultracold quantum gases

, 2012
We propose an experimental setup to efficiently measure the dynamic structure factor of ultracold quantum gases. Our method uses the interaction of the trapped atomic system with two different cavity modes, which are driven by external laser fields.
Griessner A, Hans Peter Büchler, Hendrik Weimer, Mattinson F, Walls D F   +4 more
core   +1 more source

Reexamining Black-Body Shifts for Hydrogenlike Ions [PDF]

, 2008
We investigate black-body induced energy shifts for low-lying levels of atomic systems, with a special emphasis on transitions used in current and planned high-precision experiments on atomic hydrogen and ionized helium.
J. J. Sakurai, J. Varnier, M. E. Rose, Martin Haas, T. F. Gallagher, Ulrich D. Jentschura, W. M. Itano   +6 more
core   +3 more sources

Atomic Parity Nonconservation: Electroweak Parameters and Nuclear Structure

, 1992
There have been suggestions to measure atomic parity nonconservation (PNC) along an isotopic chain, by taking ratios of observables in order to cancel complicated atomic structure effects.
A. Krasznahorkay, A. M. Martensson Pendrill, B. D. Serot, B. Zeidmann, C. Bouchiat, C. de Jager, C. J. Batty, C. Monroe, C. Olmer, D. B. Kaplan, D. C. Kennedy, D. London, E. D. Commins, E. N. Fortson, E. N. Fortson, E. N. Fortson, E. N. Fortson, F. Garcias, G. Feinberg, G. R. Satchler, G. W. Hoffmann, J. Achtzehnter, J. Ashman, J. D. Walecka, J. Dechargé, J. F. Donnoghue, J. F. Donnoghue, J. Friedrich, L. Ray, L. Ray, L. Wilets, L. Wilets, M. A. Bouchiat, M. A. Bouchiat, M. A. Bouchiat, M. A. Bouchiat, M. A. Bouchiat, M. Beiner, M. C. Noecker, M. M. Sharma, M. Peskin, P. Aufmuth, P. G. Reinhard, P. Quentin, P. Sandars, R. C. Thompson, R. L. Jaffe, S. A. Blundell, S. J. Pollock, S. Weinberg, T. T. S. Kuo, T. W. Donnelly, V. A. Dzuba, V. A. Dzuba, W. D. Meyers, W. Marciano   +55 more
core   +2 more sources

UJAT-Net: A U-Net Combined Joint-Attention and Transformer for Breast Tubule Segmentation in H&E Stained Images

IEEE Access
The formation of breast tubules is an important evaluation index in the pathological grading of breast cancer. However, the tubules of breast present a wide variety of morphologies and a significant demonstrated significant advantages in the automatic ...
Li-Wang Liu, Zhao Huang, Kao-Yan Lu, Zu-Xuan Wang, Yao-Ming Liang, Shi-Yu Lin, Yan-Hong Ji   +6 more
doaj   +1 more source

Voronoi-Delaunay analysis of normal modes in a simple model glass

, 1999
We combine a conventional harmonic analysis of vibrations in a one-atomic model glass of soft spheres with a Voronoi-Delaunay geometrical analysis of the structure.
A.P. Sokolov, B.B. Laird, C. Mascivecchio, C. Oligschleger, C. Oligschleger, D. Caprion, G.D.W. Schirmacher, H. R. Schober, H.R. Schober, H.R. Schober, H.R. Schober, J. Fabian, J. Fabian, J. Hafner, J. Hafner, J.M. Ziman, L. Angelani, L.D.V. Ee, M. Cho, M. Foret, M.A. Il’in, N. N. Medvedev, N.N. Medvedev, N.N. Medvedev, N.N. Medvedev, N.N. Medvedev, P. Ballone, P. Benassi, P. Ehrhart, P. Jund, P. Jund, R. Dell’Anna, R. Jullien, S.-P. Chen, S.N. Taraskin, S.R. Elliott, T. Egami, T. Egami, T. Egami, T. Kustanovich, U. Buchenau, U. Buchenau, V. A. Luchnikov, V.A. Luchnikov, V.G. Karpov, V.K. Malinovskii, V.L. Gurevich, V.N. Novikov, V.P. Voloshin, W. Jin, W.G. Hoover, Yu. I. Naberukhin   +51 more
core   +1 more source

Uncertainty Estimates for Theoretical Atomic and Molecular Data [PDF]

, 2016
Sources of uncertainty are reviewed for calculated atomic and molecular data that are important for plasma modeling: atomic and molecular structure and cross sections for electron-atom, electron-molecule, and heavy particle collisions.
Bartschat, K., Braams, B. J., Chung, H. -K., Csaszar, A. G., Drake, G. W. F., Kirchner, T., Kokoouline, V., Tennyson, J.   +7 more
core   +2 more sources

2S hyperfine structure of atomic deuterium

, 2004
We have measured the frequency splitting between the $(2S, F=1/2)$ and $(2S, F=3/2)$ hyperfine sublevels in atomic deuterium by an optical differential method based on two-photon Doppler-free spectroscopy on a cold atomic beam.
F. Biraben, H. A. Bethe, N. Kolachevsky, N. Ramsey, P. Fendel, S. G. Karshenboim, S. G. Karshenboim, T. W. Hänsch   +7 more
core   +1 more source

Electronic structure interpolation via atomic orbitals

, 2010
We present an efficient scheme for accurate electronic structure interpolations based on the systematically improvable optimized atomic orbitals. The atomic orbitals are generated by minimizing the spillage value between the atomic basis calculations and
Chen M, G-C Guo, Lixin He, Lu W C, Mohan Chen, Soler J M, Sánchez-Portal D, Vanderbilt D   +7 more
core   +1 more source

High-Resolution Crystal Truncation Rod Scattering: Application to Ultrathin Layers and Buried Interfaces

, 2020
In crystalline materials, the presence of surfaces or interfaces gives rise to crystal truncation rods (CTRs) in their X‐ray diffraction patterns. While structural properties related to the bulk of a crystal are contained in the intensity and position of
Henrich V. E., Materlik G., Prince E., Shvyd'Ko Y., Thompson A. C.   +4 more
core   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen, Calogero Virgone, Antje Redlich, Michael Abele, Ricardo Lopez‐Almaraz, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Maja Mazic Cesen, Andrea Ferrari, Malgorzata A. Krawczyk, Yves Reguerre, Dominik T. Schneider, Ines B. Brecht, Charlotte Rigaud, Bilgehan Yalcin, Rainer Claus, Christian Vokuhl, Constantin Lapa, Jörg Fuchs, Segolene Hescot, Thomas Walter, Julien Hadoux, Daniel Orbach   +23 more
wiley   +1 more source